RingBufferParcelable.cpp revision c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fb
1204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk/* 2204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * Copyright 2016 The Android Open Source Project 3204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * 4204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * Licensed under the Apache License, Version 2.0 (the "License"); 5204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * you may not use this file except in compliance with the License. 6204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * You may obtain a copy of the License at 7204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * 8204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * http://www.apache.org/licenses/LICENSE-2.0 9204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * 10204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * Unless required by applicable law or agreed to in writing, software 11204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * distributed under the License is distributed on an "AS IS" BASIS, 12204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * See the License for the specific language governing permissions and 14204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * limitations under the License. 15204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk */ 16204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 17c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fbPhil Burk#define LOG_TAG "AAudio" 18c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fbPhil Burk//#define LOG_NDEBUG 0 19c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fbPhil Burk#include <utils/Log.h> 20c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fbPhil Burk 21204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk#include <stdint.h> 22204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 23204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk#include <binder/Parcelable.h> 24204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 255ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk#include "binding/AAudioServiceDefinitions.h" 26204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk#include "binding/SharedRegionParcelable.h" 27204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk#include "binding/RingBufferParcelable.h" 28204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 295ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burkusing namespace aaudio; 30204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 31204a163c86f357a878873fe7d4c4164f3d55c9b6Phil BurkRingBufferParcelable::RingBufferParcelable() {} 32204a163c86f357a878873fe7d4c4164f3d55c9b6Phil BurkRingBufferParcelable::~RingBufferParcelable() {} 33204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 34204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk// TODO This assumes that all three use the same SharedMemoryParcelable 35204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex, 36204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t dataMemoryOffset, 37204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t dataSizeInBytes, 38204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t readCounterOffset, 39204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t writeCounterOffset, 40204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t counterSizeBytes) { 41204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mReadCounterParcelable.setup(sharedMemoryIndex, readCounterOffset, counterSizeBytes); 42204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mWriteCounterParcelable.setup(sharedMemoryIndex, writeCounterOffset, counterSizeBytes); 43204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes); 44204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 45204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 46204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex, 47204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t dataMemoryOffset, 48204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk int32_t dataSizeInBytes) { 49204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mReadCounterParcelable.setup(sharedMemoryIndex, 0, 0); 50204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mWriteCounterParcelable.setup(sharedMemoryIndex, 0, 0); 51204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes); 52204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 53204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 54204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkint32_t RingBufferParcelable::getBytesPerFrame() { 55204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return mBytesPerFrame; 56204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 57204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 58204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::setBytesPerFrame(int32_t bytesPerFrame) { 59204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mBytesPerFrame = bytesPerFrame; 60204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 61204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 62204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkint32_t RingBufferParcelable::getFramesPerBurst() { 63204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return mFramesPerBurst; 64204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 65204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 66204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::setFramesPerBurst(int32_t framesPerBurst) { 67204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mFramesPerBurst = framesPerBurst; 68204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 69204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 70204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkint32_t RingBufferParcelable::getCapacityInFrames() { 71204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return mCapacityInFrames; 72204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 73204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 74204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::setCapacityInFrames(int32_t capacityInFrames) { 75204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mCapacityInFrames = capacityInFrames; 76204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 77204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 78204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk/** 79204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk * The read and write must be symmetric. 80204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk */ 81204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkstatus_t RingBufferParcelable::writeToParcel(Parcel* parcel) const { 82204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->writeInt32(mCapacityInFrames); 83204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mCapacityInFrames > 0) { 84204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->writeInt32(mBytesPerFrame); 85204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->writeInt32(mFramesPerBurst); 86204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->writeInt32(mFlags); 87204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mReadCounterParcelable.writeToParcel(parcel); 88204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mWriteCounterParcelable.writeToParcel(parcel); 89204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mDataParcelable.writeToParcel(parcel); 90204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 91204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return NO_ERROR; // TODO check for errors above 92204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 93204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 94204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkstatus_t RingBufferParcelable::readFromParcel(const Parcel* parcel) { 95204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->readInt32(&mCapacityInFrames); 96204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mCapacityInFrames > 0) { 97204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->readInt32(&mBytesPerFrame); 98204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->readInt32(&mFramesPerBurst); 99204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk parcel->readInt32((int32_t *)&mFlags); 100204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mReadCounterParcelable.readFromParcel(parcel); 101204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mWriteCounterParcelable.readFromParcel(parcel); 102204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mDataParcelable.readFromParcel(parcel); 103204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 104204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return NO_ERROR; // TODO check for errors above 105204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 106204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 1075ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burkaaudio_result_t RingBufferParcelable::resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor) { 1085ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk aaudio_result_t result; 109204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 110204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk result = mReadCounterParcelable.resolve(memoryParcels, 111204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk (void **) &descriptor->readCounterAddress); 1125ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if (result != AAUDIO_OK) { 113204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 114204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 115204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 116204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk result = mWriteCounterParcelable.resolve(memoryParcels, 117204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk (void **) &descriptor->writeCounterAddress); 1185ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if (result != AAUDIO_OK) { 119204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 120204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 121204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 122204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk result = mDataParcelable.resolve(memoryParcels, (void **) &descriptor->dataAddress); 1235ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if (result != AAUDIO_OK) { 124204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 125204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 126204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 127204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk descriptor->bytesPerFrame = mBytesPerFrame; 128204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk descriptor->framesPerBurst = mFramesPerBurst; 129204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk descriptor->capacityInFrames = mCapacityInFrames; 130204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk descriptor->flags = mFlags; 1315ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk return AAUDIO_OK; 132204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 133204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 1345ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burkaaudio_result_t RingBufferParcelable::validate() { 1355ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk aaudio_result_t result; 136204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mCapacityInFrames < 0 || mCapacityInFrames >= 32 * 1024) { 137204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mCapacityInFrames = %d", mCapacityInFrames); 1385ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk return AAUDIO_ERROR_INTERNAL; 139204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 140204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mBytesPerFrame < 0 || mBytesPerFrame >= 256) { 141204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mBytesPerFrame = %d", mBytesPerFrame); 1425ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk return AAUDIO_ERROR_INTERNAL; 143204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 144204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mFramesPerBurst < 0 || mFramesPerBurst >= 1024) { 145204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mFramesPerBurst = %d", mFramesPerBurst); 1465ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk return AAUDIO_ERROR_INTERNAL; 147204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 1485ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if ((result = mReadCounterParcelable.validate()) != AAUDIO_OK) { 149204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mReadCounterParcelable = %d", result); 150204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 151204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 1525ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if ((result = mWriteCounterParcelable.validate()) != AAUDIO_OK) { 153204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mWriteCounterParcelable = %d", result); 154204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 155204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 1565ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk if ((result = mDataParcelable.validate()) != AAUDIO_OK) { 157204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGE("RingBufferParcelable invalid mDataParcelable = %d", result); 158204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk return result; 159204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 1605ed503c7a66c90f93759c90237a9b432dbd93f9fPhil Burk return AAUDIO_OK; 161204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 162204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 163204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk 164204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burkvoid RingBufferParcelable::dump() { 165204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGD("RingBufferParcelable mCapacityInFrames = %d ---------", mCapacityInFrames); 166204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk if (mCapacityInFrames > 0) { 167204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGD("RingBufferParcelable mBytesPerFrame = %d", mBytesPerFrame); 168204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGD("RingBufferParcelable mFramesPerBurst = %d", mFramesPerBurst); 169204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk ALOGD("RingBufferParcelable mFlags = %u", mFlags); 170204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mReadCounterParcelable.dump(); 171204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mWriteCounterParcelable.dump(); 172204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk mDataParcelable.dump(); 173204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk } 174204a163c86f357a878873fe7d4c4164f3d55c9b6Phil Burk} 175